In a forced-choice recognition task children's memory for some dimensions of pictured events was investigated. Seventy-two children (12 boys and 12 girls each in kindergarten, second, and fourth grades) were shown pictures of simple events. In four response conditions, distractors differed from stimulus pictures in (1) who the participants were, (2) which participants were paired, (3) what type of action was occurring, and (4) each participant's role. There was a highly reliable effect of conditions on recognition accuracy, but no effect of age or interaction of age with condition. All children remembered the participants, role and type of action, in that order. They did not consistently remember which participants had been paired. It was inferred that: (1) children used semantic information to organize these pictured events; (2) they seem to have had available in memory a set of participants, with information about role relation and action of each participant; (3) the ability to use role and action information for picture recognition apparently develops very early. (Author/MS)